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drm/i915: Object w/o backing storage is banned by -ENXIO

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-ENXIO should be returned when operations are banned from changing
backing storage of objects without backing storage.

v4:
- update "Reviewed-by". (Joonas)

v3:
- separate this patch from "Introduce GEM proxy" patch-set. (Joonas)

v2:
- update the patch description and subject to just mention objects w/o
  backing storage, instead of "GEM proxy". (Joonas)

Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/1510555798-21079-1-git-send-email-tina.zhang@intel.com
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171114102513.22269-1-chris@chris-wilson.co.uk
This commit is contained in:
Tina Zhang 2017-11-14 10:25:12 +00:00 committed by Chris Wilson
parent 40c7ae457c
commit 274b2462a0
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_gem.c
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@ -1725,7 +1725,7 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
*/
if (!obj->base.filp) {
i915_gem_object_put(obj);
return -EINVAL;
return -ENXIO;
}
addr = vm_mmap(obj->base.filp, 0, args->size,